With ALL of my older Nokia/Philips/SonyEricsson/Samsung/LG phones over the past 15 years or so, I never cared or even expected new OS or new funky features to be added to the phone after about first 12 months. Heck, most phones, I never even updated to a newer firmware etc.

I guess the whole expectation of continous future support is also due to iPhone/Android and WinMo devices which are able to be upgraded to newer OS versions. Also, the fact that N900 is much more computer like than most other "phones". Well, I hope I can upgrade it to Maemo 6, but really, it's already good enough to last me a while till my next new flashy gadget from Nokia or others.